Samurai class

So I've been seeing Samurai class in youtube and I was wondering if that's something the private server has come up and made from scratch or, is that something that has been made by devs and could be expected to be in the game?

Wow can't believe this still isn't released in our region, when I first heard about it, I though it was just a bad translation for the swordmaster or dragonknight. Now that I looked it up (it's on the wiki) I can't believe we don't have it.

Within this tome is the source of my power, but make no mistake I do not need it to defeat you.